Authors: F Chiodi; U Bredberg-Råden; G Biberfeld; B Böttiger; J Albert; B Asjö; E M Fenyö; E Norrby Journal: AIDS Res Hum Retroviruses Date: 1987 Impact factor: 2.205
Authors: J W Ward; S D Holmberg; J R Allen; D L Cohn; S E Critchley; S H Kleinman; B A Lenes; O Ravenholt; J R Davis; M G Quinn Journal: N Engl J Med Date: 1988-02-25 Impact factor: 91.245